Hi ... One of my ads is showing very poor performance, about 0.25%. Other ads on my website are performing very good with 5-10%. Is it possible that this low performance ad affects my earnings ? Thanks
If that ad is only getting 0.25% CTR, and your other ads are getting 5-10% CTR, then obviously that poor performing ad is not subtracting from your overall revenue. What it means is that the 0.25% ad is not getting clicked on, and SHOULD be removed from the site. If you can reduce the advertising clutter from your site, while not subtracting from your overall revenue, it's a positive.